EN 14683 tester models and their published ranges

The TNG1047, TNG1044, and TNG1049 instruments are designed to meet the requirements of EN 14683, providing accurate and reliable testing for bacterial filtration efficiency and synthetic blood penetration in face masks.

Testing for Bacterial Filtration Efficiency

The TNG1047, Masks Bacterial Filtration Efficiency Tester, is specifically designed to evaluate the performance of medical face masks in accordance with EN 14683. This instrument ensures that the filtration efficiency of masks is tested under controlled conditions. The Sample Flow Rate of A and B is set at 28.3L/min, which is a standard value for testing bacterial filtration efficiency. This flow rate simulates real-world conditions during use, ensuring that the test results are representative of actual performance. Additionally, the Front pressure of flow meter A is set within the range of (-20～0)kPa, which helps maintain consistent airflow and pressure during testing. These specifications ensure that the test conditions are standardized, supporting accurate and repeatable results in compliance with EN 14683.

Synthetic Blood Penetration Testing

The TNG1044, Face Mask Synthetic Blood Penetration Tester, is used to assess the ability of face masks to resist penetration by synthetic blood, a critical requirement under EN 14683. The Blood spraying distance is specified as (300 ± 10) mm, ensuring that the synthetic blood is applied at a consistent and standardized distance from the mask surface. This distance is crucial for simulating the conditions under which a mask might be exposed to bodily fluids. The Nozzle inner diameter of 0.84 mm and length of 12.7 mm are also key specifications that ensure the synthetic blood is delivered in a controlled manner, mimicking the size and flow of real blood droplets. These specifications support the testing process by ensuring that the application of synthetic blood is consistent and replicable, which is essential for meeting the requirements of EN 14683.

Comparison of Synthetic Blood Penetration Testers

The TNG1049, Synthetic Blood Penetration Tester, is another instrument used for testing synthetic blood penetration in face masks. While the specifications for this model are not fully detailed, it is designed to perform similar tests to the TNG1044. The TNG1044 provides specific values for spraying speed, time, and watching time, which are essential for accurately measuring the penetration resistance of masks. These parameters ensure that the test conditions are standardized and that the results are reliable and repeatable. The TNG1049, while not providing detailed specifications, is likely designed to perform similar functions, supporting the testing requirements of EN 14683 through consistent and controlled application of synthetic blood. Both instruments are essential for ensuring that face masks meet the necessary standards for protection against biological hazards.

Instrument models referenced

• TNG1047 Masks Bacterial Filtration Efficiency Tester (Air / Water / Vapour Permeability Testing). Published specifications include Main parameters Scope; Sample Flow Rate of A 28.3L/min; Sample Flow Rate of B 28.3L/min.
• TNG1044 Face Mask Synthetic Blood Penetration Tester (Air / Water / Vapour Permeability Testing). Published specifications include Blood spraying distance: (300 ± 10) mm; Nozzle inner diameter: 0.84 mm; Nozzle length: 12.7 mm.
• TNG1049 Synthetic Blood Penetration Tester (Air / Water / Vapour Permeability Testing).